Home / 145,422.20-200,597.10-91,612.28

Finding the Fourth Proportional to 145,422.20, 200,597.10 and 91,612.28

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Solution

The fourth proportional to 145,422.20, 200,597.10 and 91,612.28 is: 126,371.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,422.20 : 200,597.10 = 91,612.28 : x
  2. Step 2: Convert to fraction form
    145,422.20/200,597.10 = 91,612.28/x
  3. Step 3: Cross multiply
    145,422.20x = 200,597.10 × 91,612.28
  4. Step 4: Simplify right side
    145,422.20x = 18,377,157,692.39
  5. Step 5: Solve for x
    x = 18,377,157,692.39/145,422.20
  6. Step 6: Final answer
    x = 126,371.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.